if a galaxy and a separate star are at the exact same distance from earth, would the light from the galaxy reach earth before the separate stars light? if so, is it because its brighter and bigger? does brighter and bigger light sources light travel faster then a less brighter and less big light source?
the speed of light in a vacuum is always 299,792 km per second, no matter what.
the question is vague due to the fact that galaxies cover many lightyears of space,due you mean the closest star of the galaxy vs the star equal the distance, do you mean the center of the galaxy vs the star, or do you mean the entire vs the star. Doesn't matter high big the light source (provided it doesn't decrease from point A to point B), light is light and if both light sources are equal the distance than both with arrive at the same time
The speed of light in a vacuum is a constant everywhere in the universe. It has nothing to do with the size or brightness of the light source
Not that I know of. The only thing that can bend light is a black hole, but other than that I don't think size will affect it.
Separate stars light.Light does not loose speed,maintaining acceleration but it does however get dimmer and dimmer until the human eye can't focus on it anymore.A stronger force of light,however would get less dimmer overtime but never-less, travel at the same speed. Since light is simply an word to describe an Electromagnetic Radiation visible to the human eye, the less dim light would come first.
